Results 51 to 60 of about 21,989 (186)
Egyptian Journal of Chest Disease and Tuberculosis, 2019 Background In patients latently infected with Mycobacterium tuberculosis, immunosuppression increases the risk of progression to active tuberculosis (TB), which is still considered one of the difficult and frequent opportunistic infections worldwide ...
Emad A Korra +3 more
doaj +1 more source
Retrospective Performance Analyses of over Two Million U.S. QuantiFERON Blood Sample Results
Microbiology Spectrum, 2021 Both the QuantiFERON-TB Gold Plus (QFT-Plus) and the QuantiFERON-TB Gold In-Tube (QFT-GIT) tests are interferon gamma (IFN-γ) release assays (IGRAs) intended to detect in vitro cell-mediated immune responses to Mycobacterium tuberculosis antigens.
Caixia Bi +6 more
doaj +1 more source
Diagnostic values of the QFT-GIT and TST for active tuberculosis assessed in PTB patients and healthy community controls. [PDF]
, 2015 Footnotes: % Sensitivity: percentage of positive, calculated with available QFT-GIT and TST results; 95% CI: Confidence interval; % Specificity: percentage of negative, calculated with available QFT-GIT and TST results; PPV, positive predictive value ...
Hui Xia (133168) +7 more
core +1 more source
PLoS ONE, 2011 IntroductionThe utility of T-cell based interferon-gamma release assays for the diagnosis of latent tuberculosis infection remains unclear in settings with a high burden of tuberculosis.ObjectivesTo determine risk factors associated with positive ...
Kwame Shanaube +10 more
doaj +1 more source
Journal of Clinical Laboratory Analysis, Volume 34, Issue 11, November 2020., 2020 Diagnostic efficacy of CFP10‐specific perforin for TB diagnosis was higher than T‐SPOT assay. CFP10‐specific perforin effectively distinguishes between ATB and LTBI. CFP10‐specific perforin can be secreted by CD4+ and CD8+ T cells. Abstract Background Mycobacterium tuberculosis (Mtb)‐specific perforin were significantly increased in patients with ...
Qinzhen Cai +9 more
wiley +1 more source
Agreement and concordance value (Kappa coefficient) of the QFT-GIT and tuberculin skin test, using different cut-off points. [PDF]
, 2015 Footnotes: QFT-GIT: QuantiFERON-TB G in tube; TST: tuberculin skin test; PTB: pulmonary tuberculosis; Percentages quoted in () are percentages by rows.* Fisher’s exact test.**: 19 unavailable results (17 patients did not return for TST readings and 2 ...
Hui Xia (133168) +7 more
core +1 more source
BMC Infectious Diseases, 2018 Backgrounds Extrapulmonary tuberculosis (EPTB) is a heterogeneous disease, and diagnosis is sometimes difficult. We investigated the diagnostic performance of the QuantiFERON-TB Gold assay (QFT-GIT) according to sites of EPTB and predictors for false ...
Youn Jeong Kim +5 more
doaj +1 more source
Health Science Reports, Volume 3, Issue 2, June 2020., 2020 Abstract Background and aims Despite the World Health Organization (WHO)'s updated guidelines on tuberculosis (TB) preventive treatment, the scale‐up of TB preventive therapy remains low in many high‐burden countries (HBCs). We conducted a survey to better understand the current status of policy implementation and barriers for scale‐up.
Lena Faust +3 more
wiley +1 more source
Likelihood ratio for indeterminate results of 2773 QuantiFERON-TB Gold In-Tube (QFT-GIT) tests based on the variables. [PDF]
, 2015 Positive and negative results of QFT-GIT are considered as “determinate”.Likelihood ratio for indeterminate results of 2773 QuantiFERON-TB Gold In-Tube (QFT-GIT) tests based on the variables.
Bo-Ram Kim (714663) +4 more
core +1 more source
Risk factors associated with a positive QFT-GIT result in 631 healthcare workers. [PDF]
, 2019 Risk factors associated with a positive QFT-GIT result in 631 healthcare workers.
Bensghir Mustapha (7251524) +28 more
core +1 more source